Family:
Apocynaceae Juss.
Genus:
Raphionacme Harv.

Raphionacme madiensis S.Moore

This species is accepted, and its native range is Uganda to S. Tropical Africa.

[FTEA]

Apocynaceae (part 2), David Goyder, Timothy Harris, Siro Masinde, Ulrich Meve, Johan Venter. Flora of Tropical East Africa, 2012

Morphology General Habit
Herb, up to 0.2 m tall, profusely lactiferous.
Vegetative Multiplication Tubers
Tuber sub-spherical, up to 16 cm diameter.
Morphology Stem
Aerial stems erect to spreading, branching lateral, 10–16 cm long, puberulent to scabridulous
Morphology Leaves
Leaf petiole 5–20 mm long, puberulent; blade ovate, narrowly ovate, elliptic, narrowly elliptic, obovate or narrowly obovate, (5–)8–15 × (1–)3–5 cm, acute, base tapering, crinkled, above green, puberulent, veins pale and densely puberulous, beneath pale green, puberulent, veins prominent and densely puberulous, margin wavy
Morphology Reproductive morphology Inflorescences
Inflorescences terminal and axillary, compact, manyflowered, densely puberulous to scabridulous.
Morphology Reproductive morphology Inflorescences Peduncles
Peduncles 0.5–1 cm long.
Morphology Reproductive morphology Inflorescences Bracts
Bracts subulate, 3–5 mm long.
Morphology Reproductive morphology Flowers Pedicel
Pedicels 5–7 mm long
Morphology Reproductive morphology Flowers Calyx
Sepals very narrowly triangular or narrrowly ovate, 2–3 mm long
Morphology Reproductive morphology Flowers Corolla
Corolla tube campanulate, ± 2 mm long, puberulous outside; lobes oblong-ovate, oblong-triangular, narrowly ovate or narrowly triangular, 5–7 × ± 2 mm, outside puberulent, green, inside glabrous, green or dull green to whitish with brown, pink, magenta or violet streaks, and/or tips and/or margins
Morphology Reproductive morphology Flowers Corona
Coronal feet columnar, ± 1 mm long, fused laterally to inner base of corolla lobes, apically tri-segmented; central segment filiform, 5–7 mm long, apex bifid or not, tortuous, papillose, lateral segments filiform, 2–3 mm long, glabrous or papillose
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Staminal filaments filiform, curving inwards, ± 1 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers white, ovate, ± 2 mm long, apices fused together over style-head.
Morphology Reproductive morphology Flowers Gynoecium Style
Style terete, ± 1 mm long; stylehead ovoid, acute
Morphology Reproductive morphology Flowers Gynostegium
Gynostegium base in corolla mouth
Morphology Reproductive morphology Fruits
Follicles solitary, erect, ovoid, 4.5–6 cm long, 1.2–1.5 cm diameter, with tapering apex
Morphology Reproductive morphology Seeds
Seeds unknown.
Ecology
Wooded grassland and grassland on rocky outcrops and in shallow rock-basins; 850–2050 m
Distribution
Range: Congo-Kinshasa, Rwanda, Burundi, Angola, Zambia Flora districts: U1 U3 K3 T1 T4 T7

[FTEA]
Use
The tuber is said to be edible.

Native to:

Angola, Burundi, Kenya, Rwanda, Tanzania, Uganda, Zambia, Zaïre, Zimbabwe

Raphionacme madiensis S.Moore appears in other Kew resources:

First published in J. Bot. 46: 293 (1908)

Accepted by

  • Albers, F. & Meve, U. (eds.) (2002). Illustrated handbook of succulent plants Asclepiadaceae, corr. 2nd printing: 1-318. Springer, Berlin, Heidelberg,New York.
  • Goyder, D.J., Gilbert, M.G. & Venter, H.J.T. (2020). Flora Zambesiaca 7(3): 1-375. Royal Botanic Gardens, Kew.
  • Goyder, S., Harris, T., Masinde, S., Meve, U. & Venter, J. (2012). Flora of Tropical East Africa, Apocynaceae(2): 1-530.
  • Venter, H.J.T. (2009). A taxonomic revision of Raphianacme (Apocynaceae: Periplocoideae) South African Journal of Botany 75: 292-350.

Literature

Kew Backbone Distributions

  • Goyder, D.J., Gilbert, M.G. & Venter, H.J.T. (2020). Flora Zambesiaca 7(3): 1-375. Royal Botanic Gardens, Kew.
  • Venter, H.J.T. (2009). A taxonomic revision of Raphianacme (Apocynaceae: Periplocoideae) South African Journal of Botany 75: 292-350.

Flora of Tropical East Africa

  • Fl. Rwanda 3: 110 (1985)
  • J.B. 46: 294 (1908)
  • U.K.W.F. ed. 2: 175 (1994).

  • Flora of Tropical East Africa

    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

  • Kew Backbone Distributions

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0